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Campo DC | Valor | Idioma |
---|---|---|
dc.creator | Torrico, Jordana | - |
dc.creator | Strečka, Jozef | - |
dc.creator | Santos, Onofre Rojas | - |
dc.creator | Souza, Sergio Martins de | - |
dc.creator | Lyra, Marcelo Leite | - |
dc.date.accessioned | 2020-10-19T20:55:33Z | - |
dc.date.available | 2020-10-19T20:55:33Z | - |
dc.date.issued | 2020-03 | - |
dc.identifier.citation | TORRICO, J. et al. Magnetic behavior of a ferroferrimagnetic ternary alloy ABρC1−ρ with a selective site disorder: Case study of a mixed-spin Ising model on a honeycomb lattice. Physical Review E, [S. I.], v. 101, n. 3, 032104, Mar. 2020. DOI: 10.1103/PhysRevE.101.032104. | pt_BR |
dc.identifier.uri | https://journals.aps.org/pre/abstract/10.1103/PhysRevE.101.032104 | pt_BR |
dc.identifier.uri | http://repositorio.ufla.br/jspui/handle/1/43444 | - |
dc.description.abstract | Phase transitions, compensation phenomenon, and magnetization of a ferroferrimagnetic ternary alloy A B ρ C 1 − ρ composed of three different kinds of magnetic ions A , B , and C with the spin magnitudes 1/2, 1, and 3/2 are examined within the framework of a mixed-spin Ising model on a honeycomb lattice with a selective annealed site disorder on one of its two sublattices. It is supposed that the first sublattice of a bipartite honeycomb lattice is formed by the spin-1/2 magnetic ions, while the sites of the second sublattice are randomly occupied either by the spin-1 magnetic ions with a probability ρ or the spin-3/2 magnetic ions with a probability 1 − ρ , both being subject to a uniaxial single-ion anisotropy. The model under investigation can be exactly mapped into an effective spin-1/2 Ising model on a triangular lattice through the generalized star-triangle transformation. For a specific concentration of the spin-1 (spin-3/2) magnetic ions, it is shown that the ferroferrimagnetic version of the studied model may display a compensation temperature at which the total magnetization vanishes below a critical temperature. The critical temperature strikingly may also become independent of the concentration of the randomly mixed spin-1 and spin-3/2 magnetic ions for a specific value of a uniaxial single-ion anisotropy. The spontaneous magnetic order may be notably restored at finite temperatures through the order-by-disorder mechanism above a disordered ground state, which results in an anomalous temperature dependence of the total magnetization with double reentrant phase transitions. | pt_BR |
dc.language | en | pt_BR |
dc.publisher | American Physical Society | pt_BR |
dc.rights | restrictAccess | pt_BR |
dc.source | Physical Review E | pt_BR |
dc.subject | Critical phenomena | pt_BR |
dc.subject | Magnetic order | pt_BR |
dc.subject | Phase transitions | pt_BR |
dc.subject | Ising model | pt_BR |
dc.subject | Ferromagnetismo e ferrimagnetismo | pt_BR |
dc.subject | Ordem magnética | pt_BR |
dc.subject | Transições de fase | pt_BR |
dc.subject | Modelo de Ising | pt_BR |
dc.title | Magnetic behavior of a ferroferrimagnetic ternary alloy ABρC1−ρ with a selective site disorder: Case study of a mixed-spin Ising model on a honeycomb lattice | pt_BR |
dc.type | Artigo | pt_BR |
Aparece nas coleções: | DFI - Artigos publicados em periódicos |
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